CHAPTER 1 INTRODUCTION Thunder Heart's Digital Handlebar Gauge is a simple, stylish way to add complete instrumentation to your custom bike. Each gauge includes a programmable electronic speedometer that plugs directly into a Thunder Heart EA4100BD Speed Sensor. The 7,000-RPM tachometer sweeps across the top of the gauge—you can't miss it! Indicators for turn signals,...
Speed Sensor Hookup In order for the Digital Handlebar Gauge to display speed, it needs to receive a signal from a speed sensor, such as Thunder Heart P/N EA4100 transmission sensor. You will need to terminate the Digital Handlebar Gauge...
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Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com speed sensor (some speed sensors have an "AMP" connector, and others utilize a "Deutsch" connector). Use a proper “W” crimping tool to crimp the appropriate terminals onto each wire. Insert the wires into its respective connector into the proper positions...
Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com CHAPTER 4 GAUGE SETUP Odometer Start Value The odometer start value allows the user to program the desired mileage from which the speedometer will begin accumulating. 1. Make sure the motorcycle key switch is OFF and the kill switch is in the "OFF"...
Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com 7. Pause three seconds. The display will flash the next digit. 8. Repeat steps 6 and 7 until the desired odometer start value is programmed into the speedometer. 9. When the last digit is complete, the speedometer will switch to "run"...
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Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com Note: If you pause for more than three seconds before pressing the button again, the displayed option is selected. 5. When CAL is displayed on the speedometer/odometer display, pause three seconds. The display will switch to CAL 1.
Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com 7. When CAL 2 is displayed on the speedometer/odometer display, pause three seconds. The speedometer/odometer display will read the current vehicle speed (before calibration). 8. Ride the motorcycle at a constant speed of 60 (MPH or km/h, depending upon the desired unit of measure).
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Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com Note: If you pause for more than three seconds before pressing the button again, the displayed option is selected. 5. When CAL is displayed on the speedometer/odometer display, pause three seconds. The display will switch to CAL 1.
Thunder Heart Performance Corp. 615-672-8811 www.thunder-heart.com 7. When CAL 1 is displayed on the speedometer/odometer display, pause three seconds. The speedometer/odometer display will switch to a five- digit display. 8. Adjust each digit using the same method used to enter the Odometer Start Value.
• Do not use a pressure washer directly on the face of the speedometer. WARRANTY Thunder Heart Performance Corp. will repair or replace any parts that have manufacturing defects only under the following conditions: • The customer must return the product to the original place of purchase.
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Thunder Heart originally shipped them to the dealer. Thunder Heart Performance Corp. reserves the right to repair or replace the product at Thunder Heart’s discretion. We do not offer refunds or credit for the returned product. In addition, any product that is misused or otherwise damaged by the end customer will be billed for any repair or replacement costs associated with the damage.